so, you don't know the artifact can be keep between loops?
edit1: what I do is after getting the Astrape artifact I press loop now and I still keep the artifact because the artifact can be keep between loops.
edit2: I think because you attach the artifact something and then loop so the artifact does not return to you after loop and the artifact just in what thing you attach it to.
please test if you attach the artifact to something or not (I have no hate toward you or trolling you I just want you to know the game better).
and please reply if you see this.